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GMS37140T-DT 参数 Datasheet PDF下载

GMS37140T-DT图片预览
型号: GMS37140T-DT
PDF下载: 下载PDF文件 查看货源
内容描述: [Microcontroller, 4-Bit, OTPROM, 4MHz, CMOS, PDSO24, 0.300 INCH, SOP-24]
分类和应用: 计算机
文件页数/大小: 109 页 / 782 K
品牌: HYNIX [ HYNIX SEMICONDUCTOR ]
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Chapter 4. FUNCTIONAL DESCRIPTION  
Reset Operation  
GMS36/37XXX has three reset sources. One is a built-in Power-on reset circuit, another  
is a built-in Low VDD Detection circuit, the other is the overflow of Watch Dog Timer. (WDT)  
All reset operations are internal in the GMS36/37XXX.  
Built-in Power On Reset Circuit  
GMS36/37XXX has a built-in Power-on reset circuit consisting of an about 1 Resistor  
and a 3pF Capacitor. When the Power-on reset pulse occurs, system reset signal is  
latched and WDT is cleared. After the overflow time of WDT (213 x System clock time)  
system reset signal is released.  
<GMS36/37XXX>  
VCC  
System  
RESETB  
treset  
About 108msec at  
fosc = 455kHz  
Fig. 4-4 Power-On Reset Circuit and Timing Chart  
4-8  
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